Videos of the late-night encounter between the men, who are in their late 20s and originally from Seville, and the woman show how the five wandered the streets among other drunken revellers before two of them led her into a basement.

According to a police report, the men surrounded the woman in a small alcove, removed her clothes and had unprotected sex.

Some of them filmed the sexual act on their phones. One of the men posted messages in a WhatsApp group celebrating what they had done and promising to share the recording.

According to the police report, the victim maintained a "passive or neutral" attitude throughout the scene, keeping her eyes closed at all times. Her phone was then stolen.

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The case triggered protests after the sentencing and again on Thursday

She told the trial that she was still having psychological treatment to deal with trauma.

Under Spanish law, the charge of sexual abuse differs from rape in that it does not involve violence or intimidation.

The conviction and sentence were widely criticised across Spain by women's groups and politicians.

Spain's Deputy Prime Minister Soraya Sáenz de Santamaría called on officials to analyse the verdict so that similar cases could be avoided.